From 9d07d6a476f057c55af9392804c3e8b6246c637c Mon Sep 17 00:00:00 2001
From: 23rd <23rd@vivaldi.net>
Date: Sun, 1 May 2022 02:35:42 +0300
Subject: [PATCH] Added ability to append pinned to top content to generic box.

---
 ui/layers/generic_box.cpp | 25 +++++++++++++++++++++++--
 ui/layers/generic_box.h   | 10 +++++++---
 2 files changed, 30 insertions(+), 5 deletions(-)

diff --git a/ui/layers/generic_box.cpp b/ui/layers/generic_box.cpp
index 447bf8c..fe90bce 100644
--- a/ui/layers/generic_box.cpp
+++ b/ui/layers/generic_box.cpp
@@ -16,15 +16,36 @@ namespace Ui {
 void GenericBox::prepare() {
 	_init(this);
 
+	const auto currentWidth = width();
+	if (_pinnedToTopContent) {
+		_pinnedToTopContent->resizeToWidth(currentWidth);
+	}
+
 	auto wrap = object_ptr<Ui::OverrideMargins>(this, std::move(_owned));
-	setDimensionsToContent(_width ? _width : st::boxWidth, wrap.data());
-	setInnerWidget(std::move(wrap));
+	setDimensionsToContent(currentWidth, wrap.data());
+	setInnerWidget(
+		std::move(wrap),
+		_pinnedToTopContent ? _pinnedToTopContent->height() : 0);
 }
 
 void GenericBox::addSkip(int height) {
 	addRow(object_ptr<Ui::FixedHeightWidget>(this, height));
 }
 
+not_null<Ui::VerticalLayout*> GenericBox::setPinnedToTopContent(
+		object_ptr<Ui::VerticalLayout> layout) {
+	_pinnedToTopContent = std::move(layout);
+	return _pinnedToTopContent.data();
+}
+
+int GenericBox::rowsCount() const {
+	return _content->count();
+}
+
+int GenericBox::width() const {
+	return _width ? _width : st::boxWidth;
+}
+
 not_null<Ui::VerticalLayout*> GenericBox::verticalLayout() {
 	return _content;
 }
diff --git a/ui/layers/generic_box.h b/ui/layers/generic_box.h
index b6832f8..4214375 100644
--- a/ui/layers/generic_box.h
+++ b/ui/layers/generic_box.h
@@ -42,9 +42,8 @@ public:
 		_showFinished = callback;
 	}
 
-	int rowsCount() const {
-		return _content->count();
-	}
+	[[nodiscard]] int rowsCount() const;
+	[[nodiscard]] int width() const;
 
 	template <
 		typename Widget,
@@ -85,6 +84,9 @@ public:
 		}
 	}
 
+	not_null<Ui::VerticalLayout*> setPinnedToTopContent(
+		object_ptr<Ui::VerticalLayout> layout);
+
 	[[nodiscard]] not_null<Ui::VerticalLayout*> verticalLayout();
 
 	using BoxContent::setNoContentMargin;
@@ -124,6 +126,8 @@ private:
 	not_null<Ui::VerticalLayout*> _content;
 	int _width = 0;
 
+	object_ptr<Ui::VerticalLayout> _pinnedToTopContent = { nullptr };
+
 };
 
 template <typename InitMethod, typename ...InitArgs>